Tools
Arize AX vs PromptLayer
Arize AX or PromptLayer? Their plans monthly and yearly, the capabilities their makers state, security and latest updates, side by side — read from the makers' own pages.
In short
- Both: Self-hosted, Traces and evaluates
- Only Arize AX states: Runs commands, Command line
- Only PromptLayer states: API, Official SDKs, Builds agents and workflows
Arize AX
Arize AX traces, evaluates, and improves AI agents and applications using observability, issue detection, experiments, and managed agents.
Plans
AX Free
Free
- 10 issues per month
- 25k spans per month
- 1 GB per month
- 15 days retention
- SaaS deployment
- Unlimited users and evals
AX Pro
- $50 per month
- 25 issues per month
- 50k spans per month
- 10 GB per month
- 30 days retention
- SaaS deployment
- Unlimited users and evals
AX Enterprise
Price on request
- Unlimited signal issues
- Custom span volume
- Custom ingestion volume
- Custom retention
- SaaS or self-hosted deployment
- Unlimited users and evals
Prices checked 2026-09-25 on the maker’s page.
Capabilities
- Runs commands — “Start in your terminal” source
- Command line — “Start in your terminal” source
- Self-hosted — “SaaS or Self-Hosted” source
- Traces and evaluates — “The agent observability and evaluation platform.” source
Security
- SOC 2 Type II — “Arize AI Announces SOC 2 Type II Certification” source
- SOC 2 — “Arize AI Announces SOC 2 Type II Certification” source
- ISO 27001 — “ISO/IEC 27001 Certified” source
- GDPR — “GDPR Compliant” source
- HIPAA — “HIPAA Compliant” source
- Data kept in the EU — “Arize AI: Support for EU Data Residency” source
Latest updates
- Get Alyx help tailored to your experience
Alyx adapts how it helps based on your experience level in each part of Arize AX.
- Pick up where you left off with Alyx long-term memory
Alyx remembers durable context across conversations, including your preferences, ongoing goals, project and asset learnings, team conventions, and important decisions.
- Add and annotate entire sessions and traces in annotation queues
You can send full multi-turn sessions and complete traces to an annotation queue and review them at session or trace granularity.
PromptLayer
PromptLayer helps AI teams manage prompts, run evaluations, trace agents, and monitor LLM application usage.
Plans
Free
Free
- 5 users
- 2.5k/month requests
- 1 workspace
- 250/month Eval Cell Executions
- 10MB max per Dataset
Pro
- $49 per month
- Same limits as in Free, plus
- Unlimited Playgrounds
- Unlimited Workspaces
- 150MB max per Dataset
Team
- $500 per month
- 25 Users
- 100k+/month Requests
- 7.5k+/month Eval Cell Executions
- 1GB max per Dataset
Enterprise
Price on request
- Custom limits on everything
- Role Based Access Controls
- Deployment Approvals
- HIPAA with BAA
- Flexible Hosting Options
- Dedicated Support
Prices checked 2026-09-26 on the maker’s page.
Capabilities
- Self-hosted — “Enterprise Self-hosted, managed single-tenant” source
- API — “PromptLayer provides versioned prompts, programmatic APIs, webhooks, and evaluation workflows for controlled CI/CD releases.” source
- Official SDKs — “Treat prompt versions like deployable software artifacts: retrieve them through an SDK or REST API, run regression evaluations when they change, and promote release labels only after checks pass.” source
- Builds agents and workflows — “Build, trace, and improve agent workflows with prompts, tool calls, evaluations, and logs in one place.” source
- Traces and evaluates — “Connect production traces to prompt versions, inspect failures, and track cost, latency, and token usage.” source
Latest updates
- Deployment 1
General performance and stability improvements
- Deployment 1
Structured Search accepts Ctrl+Enter; FOR_LOOP column variable mappings are preserved; multi-value badges handle overflow and text wrapping.
- Deployment 1
Added Gemini 3.8 Flash support across Google AI Studio, Vertex AI, and OpenRouter; updated GPT-5.6 Sol and Sol Pro pricing.